Two Identical Loudspeakers That Are 5

Multiple Choice

Two identical loudspeakers that are 5.00 m apart and face toward each other are driven in phase by the same oscillator at a frequency of 875 Hz.The speed of sound in the room is .If you start out standing midway between the speakers,find the shortest distance you can walk toward either speaker in order to hear a minimum of sound.

A) 0.0983 m
B) 0.197 m
C) 0.295 m
D) 0.393 m
E) 0.590 m